Alert archive / Virginia / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 3, NWS Wakefield, VA

April 27, 1994Chesterfield County, Henrico County, Virginia

NWS Wakefield, VA issued this severe thunderstorm warning at Apr 27, 1994, 5:07 PM EDT for Chesterfield County, Henrico County, Virginia. It was in force for 40 min.

The area

The counties it named.

The facts

Issued
Apr 27, 1994, 5:07 PM EDT (21:07 UTC)
Expired
Apr 27, 1994, 5:47 PM EDT
In force
40 min
Issued by
NWS Wakefield, VA
Area
Whole counties

Counties Chesterfield County, VA, Henrico County, VA

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 9.1 hours before the alert went out and 170 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Washington/Dulle, VA at 12:00Z on 1994-04-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 48 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Washington/Dulle, VA at 12:00Z on 1994-04-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 31 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
48 J/kg
Mixed-layer CIN
-220 J/kg
Mixed-layer LCL
1791 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
31 m²/s²
0-3 km storm-relative helicity
12 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

The office that day

Everything else NWS Wakefield, VA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 27, 1:41 PM EDTSevere Thunderstorm WarningAKQBotetourt, Rockbridge64 min
Apr 27, 5:23 PM EDTSevere Thunderstorm WarningAKQKing and Queen37 min

Nearby

Severe Thunderstorm Warnings in Virginia, 1994Every severe thunderstorm warning in 1994

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.